TRANSFORMATION MECHANISM OF SPHERICAL ZIRCONIA PARTICLES IN ALUMINA.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The tetragonal (t)-to-monoclinic (m) transformation of ZrO//2 particles randomly dispersed in Al//2O//3 was examined in situ by 1 Mev high-voltage electron microscopy. The residual strain field around tetragonal particles has a principal axis in the C//t direction of t-ZrO//2, as expected from thermal expansion mismatch with Al//2O//3. Two-dimensional analyses indicated that the tetragonal strain axis was replaced by parallel alignment of monoclinic twin plane traces, and hence perpendicular orientation of the monoclinic strain axis, suggesting self-accommodating behavior. The crystallography of the in situ transformation for an approx. 0. 3 mu m particle was elucidated.

Original languageEnglish (US)
Title of host publicationAdvances in Ceramics
EditorsNils Claussen, Manfred Ruehle, Arthur Harold Heuer
PublisherAmerican Ceramic Soc Inc
Pages64-77
Number of pages14
ISBN (Print)0916094642
StatePublished - 1984
Externally publishedYes

Publication series

NameAdvances in Ceramics
Volume12
ISSN (Print)0730-9546

ASJC Scopus subject areas

  • Engineering(all)

Fingerprint

Dive into the research topics of 'TRANSFORMATION MECHANISM OF SPHERICAL ZIRCONIA PARTICLES IN ALUMINA.'. Together they form a unique fingerprint.

Cite this